Science

Saturday, 21 February 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Amber
It is a fossilized resin from ancient trees, often prized for its natural beauty and historical significance.
The oldest amber is approximately 320 million years old, making it a valuable window into prehistori ...
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Snow
Snowfall has also been observed on Mars.
They were observed by the Phoenix probe. The snow fell from clouds flowing four kilometers above the ...
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Amber
Baltic amber has been found in the tombs of Egyptian pharaohs.
Scientists claim amber was supposed to represent the tears of Ra—the Egyptian god of the Sun.
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Moon
The Moon's atmosphere consists of 25 percent helium, 25 percent neon, 23percent hydrogen, 20 percent argon and residual amounts of methane, ammonia and carbon dioxide.
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Ganymede
Ganymede's core is composed of iron, which may be partially liquid and is surrounded by a thick mantle made of silicates.
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Large Magellanic Cloud
The mass of the Large Magellanic Cloud is estimated at 10 billion solar masses, which is about a hundred times less massive than the Milky Way.
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NASA
After the Space Shuttle Columbia disaster, the construction of the ISS was paused until the launch of Space Shuttle Discovery on July 26th, 2005.
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Aurora
The Aurora Borealis in the northern hemisphere is visible between September 21 and March 21, between 6 p.m. and 1 a.m. when it is dark outside.
The range of the region in Northern Europe includes the Kola Peninsula in Russia and the territory of three Nordic countries: Finland, Sweden, and Norway.
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Tears
Watery eyes may be a signal of dry eye syndrome.
Dry eye syndrome is caused by insufficient quantity or quality of tears, which prevents the proper lubrication of eyeballs. It causes excessive watering of the eyes, as a response to the irritation.
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Cosmos
The largest mountain in the Solar System is Olympus Mons.
This extinct volcano rises above the Martian surface to a height of about level. The diameter of the ...
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17 facts about Titan
17 facts about Titan
The largest of Saturn’s satellites
Titan is the only moon in the Solar System with such a dense atmosphere. It is the second largest moon in the Solar System after Ganymede (Jupiter III ...
18 facts about amber
18 facts about amber
Fossilized tree resin
Amber is one of the most interesting natural products. It looks like a gemstone, but it is a fossilized tree resin from ancient trees dating back mill ...
16 facts about liver
16 facts about liver
24/7 laboratory
The liver is one of the most essential human organs. It is extensively multitasking—it produces, filtrates, converts, and stores. It is thanks to the ...
29 facts about NASA
29 facts about NASA
For the Benefit of All
The Cold War, although a grim period in world history, brought an intense rivalry in a space race between the U.S., and the Soviet Union. As a result, ...
16 facts about Aurora
16 facts about Aurora
Northern light that has delighted people for centuries
Auroras can be different. Sometimes it is bright and dancing, shimmering with different colors, sometimes it appears still. It has always fascinated p ...
19 facts about Brain
19 facts about Brain
Organic supercomputer
The brain is one of the most important and most fascinating and complex organs in the human body. It is an incredibly plastic command center that over ...
16 facts about Phobos
16 facts about Phobos
The larger of two moons of Mars
We do not know the exact origin of this satellite. We know, however, that it is dangerously close to its planet and is in for a catastrophe. It is not ...
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